6.1.7  Evaluating booleans: evalb

The Maple command evalb evaluates a boolean expression (see Section 6.1). Since Xcas evaluates booleans automatically, it includes a evalb command only here for compatibility and is equivalent to eval (see Section 6.12.1).

• evalb takes one argument:
  bool, a boolean expression.
• evalb()bool) returns 1 if bool is true and returns 0 otherwise.

Examples.

• Input:
  evalb(sqrt(2)>1.41)
  or:
  sqrt(2)>1.41
  Output:

  1

• Input:
  evalb(sqrt(2)>1.42)
  or:
  sqrt(2)>1.42
  Output:

  0